Band cutter and feeder for thrashing machines



March 17, 1925- 1,529,718

I R. ROBINSON BAND CUTTER AND FEEDER FOR'THRASH'ING MACHINES Filed May 23, 1922 ficfiagd .Rgbzzzs on. 37] "94% Patented Mar. 17, 1925.

RICHARD noBINsoN, or ZURICH, ONTARIO, CANADA;

BAND CUTTER AND FEEDER FOR '1'.HERA SJEIEIIJSl'Grv MACHINES.

Application filed May 23,

To all whom it may concern:

Be it known that I, RICHARD RoB NsoN, a subject of the King of Great Britain and a resident of the village of Zurich, in the county of Huron, in the Province of Ont-ario, Canada, have invented certain new and useful lmprovements in Band Cutters and Feeders for Thrashing Machines, of which the following is the specification.

My invention relates to improvements in thrashing machines and the object of the invention is to devise means for economizing the power expended in performing the thrashing operation so that it is not wasted by carrying an unnecessary amount of straw through the thrashing cylinder and it consists essentially of the following arrangement and construction of parts as hereinafter more particularly explained.

Fig. 1 is a plan View of my device applied to a portion of a thrashing machine intermediately broken away of its length.

Fig. 2 is a side elevation of the parts shown in Fig. 1.

Fig. 3 is a cross sectional View on line 3-3, Fig. 1.

Figure 4 is a side elevation of a thrashing machine showing the blower and my device coacting therewith.

In the drawings like chara-cters'of refer ence indicate corresponding parts in each figure.

1 indicates the body of a thrashing machine at the rear end of which is located the usual blower casing 1*. 2 is an orifice formed in the top of the thrashing machine and leading into the blower casing. 3 is a chute for directing the straw through the orifice 2. 4 is the housing of a thrashing cylinder into which the sheaves are fed. 5 is a conveyor carried by the thrashing machine provided with a side board 6 extending a normal height for its full length and a side board 7 provided with a portion 8 which is of normal height and a portion 9 which is reduced in height so as to be flush with the upper surface of the conveyor slats 10. 11 is a conveyor extending parallel to the conveyor 5 and to the rear of the housing 4.

The conveyor 11 is provided with a side board 12 which is of normal height from I end to end and a side board 13 a portion 1% of which extends from the rear end of the conveyor to a point in a line with the front 1922. Serial No. 563,054

end of the portion 8 [ofthe side board; 7. The portion 15 extending from the portion 14; corresponds ln height to the portion 9 of the side board 7.

By this means it will be seen a ha fed onto the conveyors extends across both the conveyor 5 and conveyor 11 in the position shown by dotted lines in Fig. 1 so that the butt of the sheaf is carried upon the conveyor 11 and the head upon the conveyor 5. 16 is a filling board extending between the portions 15 and 9 of the conveyors 11 and 5. 17 is a shaft journalled in bearings 18 carried beneath the conveyors 11 and 5. 19 is a pulley which is driven from a suitable source such as the thrashing cylinder shaft. 20 is a saw which is secured to the shaft 17 between the side board portions 8 and 14 so that the teeth thereof project slightly forward of the forward edge of such side board.

21 are curved tines extending from the side board member portion 8 towards the mouth of the housing--4. 22 is a horizontal conveyor extending between the rear end of the conveyor 11 and the hopper 3. I

The sheaves are fed onto theconveyors 11 and 5 in the usual manner and are carried upward towards the saw 20 which divides the sheaf in half intermediately of its length so that the head is carried upward upon the conveyor 5 and the butt end of the sheaf formed by the major portion of the straw carriedupward upon the conveyor 11.

The end of the head of the sheaf which is normally directed towards the butt strikes the tines 21 and is retarded thereby so that the heads formed by the ears of grain are carried forward so as to pass first into the thrashing cylinder. The straw which is cut from the sheaf by the saw 20 is carried bythe conveyor 11 anddischarged through the orifice 2 into the blower and finally out through the blower in the usual manner.

By this means it will be readily seen that the major portion of the straw which normally passes through the thrashing cylinder is carried directly to the blower and thereby the work performed by the thrash ing cylinder reduced to a minimum, thus increasing the capacity of the machine to a very great extent.

If desired both the conveyors 11 may be divided on the cross line as the parts being hingedly connected together as indicated at m Fig. 2 so as to permit of the feedand 5 ing end of the conveyors being hinged down during transportation. The conveyors are held in the operative position by any suit-- and a blower element, parallel spaced conveyors, one of said parallelconveyors feed ing to said thrashing element, a conveyor in line with the other of said parallel conveyors and leading to said blower element, a rotary cutter between said parallel conveyors, and means extending across said thresher feedin'g conveyor and adapted to said thrashing and blower elements, a cutter located'between said conveyors stationary curved fingers adapted to engage and guide a material on said thrashing feeding conveyor,

said blower feeding conveying means ex-' tending beyond said thrashing element and discharging into said casing.

RICHARD ROBINSON. 

